QUESTION B3 (a) In a redox titration, potassium permanganate, KMnO4, was standardized using 19.60 g/L FeSO4(NH4)804.6H120 (molar mass = 392.21 g/mol) standard solution. A 20.00 mL of the standard solution, acidified with H2SO4 was put in a conical flask and titrated against KMnO4 solution. The titre volume 15,50 mL of KMnO4 solution was required to reach the end-point. The unbalanced titration equation is: Fe2+ (aq) + Mnoj (aq) + H+ (aq) - Fe3+ (aq) + Mn2+ (aq) + H20 12 Marks] (i) Calculate the molarity of the standard solution [5 marks] Balance the above redox equation by the ion-electron method.​

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Listen base your answer to the question on the information below.propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below.c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol.what is the correct structural formula for a molecule of methanethiol

What is the polyatamic ion of thiosulfate